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[GH-ISSUE #3365] [Bug] Native-boundary inspection fails on a large metadata issue inventory #1231
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opened 2026-10-16 21:03:05 +00:00 by bsakaguchi
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Originally created by @coygeek on GitHub (Oct 14, 2026).
Original GitHub issue: https://github.com/morluto/rea/issues/3365
Before submitting
Area
Native analysis or decompilation
Observed behavior
inspect-managed-native-boundariesfails with a genericexecution_failurefor an 844,800-byte PE/CLI fixture containing 140,000 invalid custom-attribute constructor indexes and an otherwise readable P/Invoke declaration. It returns no inspection Evidence, coverage, or import rows. The provider isrea-dotnet-static, and the operation isinspect_managed_native_boundaries.Member inspection of the same bytes succeeds with partial metadata. Native-boundary inspection also succeeds with the same fixture structure at 100,000 invalid attributes and retains the import. A separately executed direct call to the built native-boundary parser with the larger input throws
RangeError: Maximum call stack size exceededat the inventory-issue append.Reproduction
The attribute constructor indexes are deliberately malformed. This reproduction tests whether inspection preserves the partial result and readable independent declarations, not whether those indexes form a loadable assembly. No target code is loaded or executed. The CLI failure, direct built-parser exception, smaller native-boundary control, and same-input member inspection were all observed. The dependency installation and build commands above are clean-checkout preparation instructions.
Expected behavior
Native-boundary inspection should retain the readable module and P/Invoke declaration with partial metadata coverage and the constructor-index issues, as it does for the smaller control. If an actual representation limit prevents delivery, return the documented
resource-limitcoverage outcome rather than an internal execution failure with no inspection result.docs/managed-code-analysis.md:138anddocs/managed-code-analysis.md:151define input and representation admission and theresource-limitcoverage outcome. The documented input ceiling is 128 MiB, and the separate conservative representation budget is 64 MiB.src/dotnet/ManagedArtifactFailures.test.ts:56pins preservation of malformed inventory issues across the inspection callers.docs/tool-design.md:57requires preserving partial provider facts.Impact and scope
Impact level is P2, supported by the observed bounded local metadata inspection losing every native-boundary result and its diagnostic Evidence for this input, despite an intact readable import and a file far below the documented input ceiling. The failure is limited to sufficiently large issue inventories; it does not establish a failure on ordinary assemblies.
Workaround status is unverified. Member inspection retains partial metadata but does not return the native-boundary import inventory. Removing attributes would change the selected artifact and its identity. No workaround preserving the original native-boundary result was verified.
REA version
6.4.0 (main at
8dde6370d0)Runtime and platform
Node.js v26.10.0 on macOS 27.0.1 arm64, using the built local CLI. The observed argument-count failure is runtime-dependent; these sizes establish the tested failure and successful control, not a universal threshold.
Target and artifact context
Source-owned PE/CLI fixture bytes with an otherwise readable P/Invoke declaration. The larger fixture contains 140,000 invalid custom-attribute constructor indexes in 844,800 bytes. The smaller control contains 100,000 invalid attributes in 604,672 bytes. The control retains the
Mainimport ofMessageBoxWfromuser32.dll, and its summary has one module reference, one P/Invoke import, and one native implementation.Interface
CLI
Earliest failure stage
Native analysis or reconstruction
Relevant output or evidence
For 140,000 attributes, the generator reports 844,800 bytes and native-boundary inspection exits with status 1. The returned error is:
Member inspection of the same bytes exits with status 0 and reports
metadata.status: "partial",coverage.state: "partial", and row counts includingCustomAttribute: 140000,ModuleRef: 1, andImplMap: 1. The separately executed built parser throws:For 100,000 attributes, the generator reports 604,672 bytes. Native-boundary inspection exits with status 0, returns partial metadata and coverage, and retains the
Mainimport ofMessageBoxWfromuser32.dll. Its summary has one module reference, one P/Invoke import, and one native implementation.Typed outcome or recovery expected
Run the reproduction on both sizes. The larger input must no longer become a generic
execution_failurefrom argument-count exhaustion. It should preserve partial inspection Evidence and the readable P/Invoke declaration if admitted, or return a justified representation-limit coverage result. The smaller control must continue preserving its import and partial issues, and no target execution should be introduced. Check the complete issue set or an explicitly reported capacity outcome rather than silently dropping diagnostics. Same-input member inspection supplies a discriminating control for readable metadata.Analysis or suspected cause
Source-derived reasoning identifies
src/dotnet/ManagedNativeBoundaryInspector.ts:147, whereissues.push(...inventory.issues)passes inventory issues as individual call arguments. The separately observed built-parser RangeError occurs at the corresponding inventory-issue append. A sufficiently large issue inventory can exceed the runtime's call-argument capacity before independent native-boundary declarations reach the result. The source reasoning and observed exception support this cause; the tested input sizes do not establish a universal threshold.Additional context
resource-limit; this report concerns call-argument exhaustion returningexecution_failure.@coygeek commented on GitHub (Oct 24, 2026):
Checked the reported fix on
mainatd87e73f2db.Native-boundary inspection now appends inventory issues with appendManagedParseIssues, whose nested loop avoids one argument per issue. The regression injects 150,000 inventory issues around a real managed fixture with readable P/Invoke, then requires the import, partial coverage, all issue records and first/last values. This targets the exact argument-capacity failure rather than suppressing diagnostics.
Implementation: ManagedNativeBoundaryInspector.ts, ManagedReaderFailure.ts.
The relevant regression checks in ManagedArtifactFailures.test.ts passed in the focused test run on this revision. This closure is based on the current source and those checks; provider fixtures do not establish a real-engine run. Closing as completed on main.